Investigators have accused three young men with the shooting death of a man found dead in a car Monday morning.

Marquell Underwood, 17, Trevoris Sheppard, 22, and Samuel Sanders, 16, were all charged with capital murder Tuesday morning, according to the Tuscaloosa County Metro Homicide Unit.

They are accused of killing Gregorie Somerville, 25, who was found dead in a car in the Aspen Village apartment complex off Skyland Boulevard early Monday morning. Someone on their way to work found Somerville lying partially outside the driver’s side door of his girlfriend’s car. A single .40-caliber shell casing was found near the vehicle.

Investigators believe that the suspects lured Somerville to the apartments under the pretense that they would buy a large quantity of marijuana, but they intended to rob him, said Tuscaloosa County Metro Homicide Unit commander Capt. Gary Hood. Somerville was shot and killed when he arrived at the complex, he said.

The young men are suspected of taking Somerville’s shorts, his cell phone and the marijuana.

The teenagers are being charged as adults. All three are being held in the Tuscaloosa County Jail with no bond set. They could face the death penalty if they are convicted.

Sheppard, 22, was arrested in March 2014 after police accused him of stealing a purse from a woman as she loaded groceries into her car at the Dollar General store on Bear Creek Road.